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Simplifying a + (a + 2) + (a + 30) = 130 Reorder the terms: a + (2 + a) + (a + 30) = 130 Remove parenthesis around (2 + a) a + 2 + a + (a + 30) = 130 Reorder the terms: a + 2 + a + (30 + a) = 130 Remove parenthesis around (30 + a) a + 2 + a + 30 + a = 130 Reorder the terms: 2 + 30 + a + a + a = 130 Combine like terms: 2 + 30 = 32 32 + a + a + a = 130 Combine like terms: a + a = 2a 32 + 2a + a = 130 Combine like terms: 2a + a = 3a 32 + 3a = 130 Solving 32 + 3a = 130 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-32' to each side of the equation. 32 + -32 + 3a = 130 + -32 Combine like terms: 32 + -32 = 0 0 + 3a = 130 + -32 3a = 130 + -32 Combine like terms: 130 + -32 = 98 3a = 98 Divide each side by '3'. a = 32.66666667 Simplifying a = 32.66666667
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